SellerStack is committed to publishing practical, accurate and useful information for UK online sellers and resellers.
This Editorial Policy explains how we research, write, review and update our guides, calculators, marketplace information and seller-tool recommendations.
Our aim is simple: help readers make better-informed selling decisions while being clear about where information comes from, where estimates are involved and where professional advice may be appropriate.
Our Editorial Purpose
SellerStack publishes resources designed primarily for UK online sellers, marketplace resellers and people exploring online selling.
Our content may cover topics including:
- eBay, Amazon, Vinted, Depop, Etsy and TikTok Shop
- marketplace fees and selling costs
- profit, pricing, ROI and break-even calculations
- product sourcing and resale stock
- shipping and fulfilment
- seller tools and software
- HMRC and general UK reseller tax information
- online selling strategies and practical seller workflows
We try to explain these subjects in plain English and focus on information that can help readers make practical decisions.
Research & Sources
Where an article discusses marketplace fees, policies, tax rules, shipping requirements or other factual information that can change, we aim to check authoritative sources before publication or major updates.
Depending on the subject, these may include:
- official marketplace help centres and seller documentation
- HMRC and GOV.UK guidance
- official courier and fulfilment-provider information
- product and software documentation
- company pricing and feature pages
- other credible sources where primary information is unavailable
Primary Sources Come First
When checking fees, policies, eligibility requirements or official rules, we prefer information published directly by the organisation responsible wherever practical.
Accuracy & Fact-Checking
We aim to distinguish between factual information, estimates, examples and editorial guidance.
Before publishing or substantially updating important guides, we may check:
- current marketplace fees
- selling-plan prices
- shipping and fulfilment rules
- tax thresholds
- calculator assumptions
- programme eligibility
- tool features and pricing
- relevant marketplace policy changes
Worked examples are normally provided to explain a concept and should not be interpreted as guaranteed results.
Keeping Content Updated
Online marketplaces change frequently.
Fees, seller programmes, fulfilment services, tax guidance, software features and platform policies can all change after an article has been published.
We therefore review and update important SellerStack content when significant changes are identified.
Where useful, guides may include a Last reviewed or Updated date so readers can understand when the information was most recently checked.
SellerStack Calculators & Tools
SellerStack provides free calculators and decision tools covering areas such as marketplace fees, profit, ROI, pricing, shipping and sourcing.
Calculator results are estimates based on:
- the information entered by the user
- the assumptions built into the tool
- the fee or calculation structure available when the tool was last reviewed
Marketplace charges and individual circumstances can vary, so calculator results should not be treated as guaranteed financial outcomes.
We encourage users to verify important figures against current marketplace pricing and their own actual costs.
Editorial Independence
SellerStack may earn revenue through affiliate partnerships and referrals.
However, commercial relationships do not determine the conclusions of our guides, comparisons or recommendations.
We may recommend:
- affiliate products
- non-affiliate products
- free tools
- marketplace-native tools
- SellerStack’s own calculators and resources
A product does not automatically become a SellerStack recommendation because an affiliate programme is available.
Likewise, we may recommend a useful product or service even when SellerStack receives no commission from it.
For more information, read our Affiliate Disclosure .
How We Approach Seller Tool Recommendations
When discussing seller software, services or business tools, we try to consider factors such as:
Usefulness
Does the tool solve a genuine problem for the type of seller it is intended for?
Features
Are the available features relevant to the use case being discussed?
Cost
Does the pricing appear reasonable relative to the functionality offered?
Seller Fit
Is the product more appropriate for beginners, established sellers or a specific marketplace?
Recommendations should be read in context. A tool that makes sense for a high-volume Amazon business may be unnecessary for somebody selling a handful of unwanted items.
Use of Technology & AI-Assisted Tools
SellerStack may use software and AI-assisted tools to support parts of the editorial workflow, including research organisation, drafting, formatting, analysis or content maintenance.
These tools do not replace the need to review important factual claims, calculations or time-sensitive information.
Where accuracy depends on current marketplace rules, government guidance or third-party pricing, we aim to verify the underlying information against appropriate sources rather than relying solely on automated output.
Tax, Financial & Business Information
Some SellerStack guides discuss topics such as HMRC rules, VAT, trading allowances, business costs, profit or pricing.
This information is provided for general educational purposes.
SellerStack does not provide individual:
- tax advice
- legal advice
- financial advice
- accountancy advice
Your circumstances may differ from the examples discussed on the site. Where necessary, check current official guidance or consult an appropriately qualified professional.
Corrections & Editorial Changes
Despite our efforts, mistakes can happen.
If we identify a meaningful factual error, outdated fee, broken link or misleading statement, we aim to correct it when practical.
Articles may also be rewritten, expanded or reorganised as SellerStack’s editorial standards and available information improve.
Help Us Keep SellerStack Accurate
If you notice information that appears inaccurate or outdated, please let us know. Include the page URL and the information you believe needs reviewing.
Email: info@thesellerstack.com
Marketplace & Brand Independence
SellerStack is an independent resource.
Unless explicitly stated otherwise, SellerStack is not affiliated with, endorsed by or operated by the marketplaces, software companies, couriers or other third-party brands discussed on the site.
Company names, trademarks and product names belong to their respective owners.
Editorial Questions
For corrections, editorial questions or feedback about SellerStack content, contact:
Email: info@thesellerstack.com
Last reviewed: September 2026.